Lines Matching full:latch

600  * Latch sequence counters (seqcount_latch_t)
628  * raw_read_seqcount_latch() - pick even/odd latch data copy
648  * read_seqcount_latch() - pick even/odd latch data copy
693  * raw_write_seqcount_latch() - redirect latch readers to even/odd copy
704  * write_seqcount_latch_begin() - redirect latch readers to odd copy
707  * The latch technique is a multiversion concurrency control method that allows
714  * latch allows the same for non-atomic updates. The trade-off is doubling the
731  *	void latch_modify(struct latch_struct *latch, ...)
733  *		write_seqcount_latch_begin(&latch->seq);
734  *		modify(latch->data[0], ...);
735  *		write_seqcount_latch(&latch->seq);
736  *		modify(latch->data[1], ...);
737  *		write_seqcount_latch_end(&latch->seq);
742  *	struct entry *latch_query(struct latch_struct *latch, ...)
748  *			seq = read_seqcount_latch(&latch->seq);
751  *			entry = data_query(latch->data[idx], ...);
754  *		} while (read_seqcount_latch_retry(&latch->seq, seq));
785  * write_seqcount_latch() - redirect latch readers to even copy
798  * latch-protected data have been updated.